Question about 1995 Isuzu Trooper

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Why is my 1995 trooper cutting off when just stopped, idleing below 800 rpm s

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  • Isuzu Master
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The engine stalled,
it sure will way below 800
there are 50 causes for stalls. and about 5 in physics
above post is the vacuum leak reason but no engine stated.
gas or diesel, some gas engines use air density other speed denity fuel system the latter race with any vacuum leak with FULL POWER. the former bog. (im a PCM tech)
ill list the 5 ways.

  1. lost 12vdc to spark or PCM (if gas) no DC power kills all this.
  2. lost compression.1 or more ( can drop hot, so test hot)
  3. lost spark 1 or all, (gas) or timed wrong? cam slipped?
  4. lost fueling or flooding? (never tuned up this decade? really?
  5. EGR stuck open. loves to stick open on all 1995 cars, that is its thing, and does so because PCM cuts it off just as you stop and if it sticks & rpm drops to 400-500 and stalls, or with A/T slush pump box, stalls like a rock, (clutch load huge)!
#4 can be ISC failure, lost air supply to engine, it will stall.
(is part of flooding really as 0 air + normal fuel = flood city.

the tools are simple and easy to use, got tools
we can do them 1 by one and let physics tell use which one it is.

#1 can be even a dead battery. or loose fuse , i never guess
the volt meter comes out and ahh , its ok, next #2

Posted on Jan 24, 2015

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  • Isuzu Master
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Check for vacuum leaks at the brake booster especially if it occurs when the brakes are applied

Posted on Jan 24, 2015

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Posted on Jan 02, 2017

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SOURCE: 1992 isuzu trooper 3.2 DOHC

I had the same trouble with my 93 Trooper.

I went on a sensor-changing spree.

The one sensor that fixed this idle problem was the throttle position sensor.

You can get one here.

Throttle Position Sensor

It's very easy to change, and fixes the problem instantly.

Good luck.

Posted on Sep 19, 2008

  • 71 Answers

SOURCE: hi, i having problems with the idle speed on my

you should have the codes pulled if the check engine light is on. if its not on it sounds like a idle control valve

Posted on Apr 26, 2010

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1 Answer

My 2002 kia rio is kinda load and vibrates when at a stop sign or in park


its because or engine rpm is below 800 when u remove your foot from the gas pedal, try adjusting your engine rpm to 800 or above to get a smoother idle speed

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1 Answer

Idle speed high


Sounds like the tps (throttle position sensor) is either defective, or out of adjustment. Need an oscilloscope to check, so see a mechanic. Could also be vacuum leak. check lines for cracks and leaks

Oct 19, 2009 | 1990 Isuzu Trooper

1 Answer

My 1999 pontiac grand am will idle low, but does not cut off.


Sounds like your oil pressure sensor may be faulty. Or your oil level is very low. Your engine should idle as low as 650 rpm without your light coming on.

Apr 10, 2009 | 1999 Pontiac Grand Am GT

1 Answer

Car dies when in drive


dear friend should your vehicle idle below 1000 RPM it is possible for your vehicle to cut as the idle drops to low,find the compensating valve and your problem is solved.

Jan 05, 2009 | 1995 Mercury Tracer

1 Answer

Idle speed too high


Look under the plastic intake tube for a hole

Nov 19, 2008 | 1990 Isuzu Trooper

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